Meteoric astronomy: A treatise on shooting-stars, fire-balls, and aerolitesKirkwood, Daniel
Science
Meteoric astronomy: A treatise on shooting-stars, fire-balls, and aerolites
Kirkwood, Daniel
Meteors
WILL THE METEORIC THEORY ACCOUNT FOR THE PHENOMENA OF VARIABLE AND
TEMPORARY STARS?
Having shown that meteor-asteroids are diffused in vast quantities
throughout the universe; that according to eminent physicists the
solar heat is produced by the precipitation of such matter on the
sun's surface; and that Leverrier has found it necessary to introduce
the disturbing effect of meteoric rings in order fully to account
for the motion of Mercury's perihelion; we now propose extending the
meteoric theory to a number of phenomena that have hitherto received no
satisfactory explanation.
VARIABLE AND TEMPORARY STARS.
No theory as to the origin of the sun's light and heat would seem to
be admissible unless applicable also to the sidereal systems. Will the
meteoric theory explain the phenomena of variable and temporary stars?
"It has been remarked respecting variable stars, that in passing
through their successive phases, they are subject to sensible
irregularities, which have not hitherto been reduced to fixed laws. In
general they do not always attain the same maximum brightness, their
fluctuations being in some cases very considerable. Thus, according
to Argelander, the variable star in _Corona Borealis_, which Pigott
discovered in 1795, exhibits on some occasions such feeble changes of
brightness, that it is almost impossible to distinguish the maxima
from the minima by the naked eye; but after it has completed several
of its cycles in this manner, its fluctuations all at once become
so considerable, that in some instances it totally disappears. It
has been found, moreover, that the light of variable stars does not
increase and diminish symmetrically on each side of the maximum, nor
are the successive intervals between the maxima exactly equal to each
other."--_Grant's History of Physical Astronomy_, p. 541.
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